Figure 1From: Long-term Safety and Efficacy of Human-Induced Pluripotent Stem Cell (iPS) Grafts in a Preclinical Model of Retinitis PigmentosaGeneration of human iPS cell lines from skin fibroblasts. (A) Fibroblast monolayer. (B, C) Fibroblasts after transduction with OCT4, SOX2, KLF4 and MYC. iPS colonies appeared between 14 and 21 d (4×). (D) iPS colony (10×). Scale bar, 100 µm.Back to article page